In a letter sent to Wheeler Tuesday, more than 240 showrunners and creators called on Wheeler to oppose any effort to impose restrictions on Internet free speech.

Now is the time to protect the Internet to ensure its enormous potential is accessible to as many people as possible.- Jill Soloway, whose series 'Transparent' was picked up by Amazon this year

“The open Internet is the greatest technological catalyst to participatory democracy and free speech since the printing press," the letter states. "That’s why totalitarian states around the world try to control it.”

The letter comes as the head of the FCC is set to propose so-called net neutrality rules for the Internet. Critics fear the proposed rules would set up a two-tiered Internet service for consumers, resulting in preferential treatment for big companies and giving too much power to the nation's broadband providers.

This month, Wheeler floated a proposal that would allow broadband operators such as Verizon to charge content providers for faster delivery to consumers.

“An open Internet has expanded the content marketplace, giving writers new ways to reach the public,” said Jill Soloway, who signed the letter and whose series "Transparent" was picked up by Amazon this year. “Now is the time to protect the Internet to ensure its enormous potential is accessible to as many people as possible.”

The Writers Guild of America, West recently submitted its comments to the FCC.

“The media business is experiencing new competition for the first time in decades, due entirely to an open Internet,” said Writers Guild of America, West President and showrunner Chris Keyser. “Writers have new outlets such as Netflix and Amazon to sell to, and consumers have new video options to choose from. But this progress is threatened if the FCC adopts weak Net Neutrality rules that allow for paid prioritization and other discriminatory behavior.”

Responding to a sharp public backlash, Federal Communications Commission Chairman Tom Wheeler revised his proposed Internet traffic rules as he tries to secure support for the agency to start formally considering them this week.

Sixteen years after SpongeBob SquarePants first appeared on television, the yellow animated character made a splash on the big screen this weekend with the release of "The SpongeBob Movie: Sponge Out of Water."